Luxury Car Rentals & Transportation

⚠️ VEHICLE troubleshooting

Guides to fix issues if something isn’t working.

Press and hold the infotainment system’s power button for about 10 seconds to restart.
If the system does not reboot, turn off the engine and restart the vehicle.
Check for system software updates via the Mercedes-Benz website.
If the issue persists, visit a dealership for further diagnosis.

Turn off Bluetooth on your smartphone and turn it back on.
Restart your vehicle’s infotainment system by holding the power button for 10 seconds.
Delete old Bluetooth connections from the infotainment system.
Go to Settings > Bluetooth > Devices and remove unnecessary paired devices.
Delete the “Mercedes-Benz” or “MBUX” connection from your phone’s Bluetooth settings.
Restart your phone.
Try reconnecting:
On infotainment screen: Go to TEL > Connect Device > Add New Device.
On phone: Select "MBUX" or "Mercedes-Benz" from available Bluetooth devices.
If Bluetooth still won’t connect, check for software updates in the Mercedes me app or visit a dealership.

For Wired Connection:
Use an Apple-certified Lightning cable or a high-quality USB-C cable for Android.
Plug the cable into the correct USB port (usually labeled with a smartphone icon).
Unlock your phone and confirm any prompts to allow access.
Restart both your phone and the car’s infotainment system.
Try another cable or a different USB port.
For Wireless Connection (GLB250, if equipped):
Make sure Bluetooth and Wi-Fi are both enabled on your iPhone.
Remove the existing CarPlay connection:
On iPhone: Go to Settings > General > CarPlay > Forget This Car.
On infotainment system: Go to Settings > Smartphone > Remove Device.
Restart your phone and the car.
Reconnect:
On infotainment system: Go to Settings > Smartphone Connectivity > Add Device.
On iPhone: Select "MBUX" from Settings > Bluetooth and follow the prompts.
If CarPlay or Android Auto still won’t work, check for software updates in the Mercedes me app or visit a dealership.

Check if Lane Keep Assist is enabled:
Go to Settings > Driver Assistance > Lane Keep Assist and turn it on.
Make sure you are driving above 37 mph (60 km/h), as Lane Keep Assist only works at higher speeds.
Ensure clear lane markings are present. The system may not work well in rain, snow, or faded road lines.
Clean the front windshield camera (near the rearview mirror) with a microfiber cloth.
Restart the vehicle and check again.
If the issue continues, the camera or sensors may need recalibration—visit a dealership.

Unlock all doors using the key fob or the interior button.
Try opening manually using the trunk release handle above the license plate.
If using the foot sensor (GLB250 models with hands-free trunk feature):
Make sure you kick straight under the center of the rear bumper (not too fast or too slow).
Stand at least 1-2 feet away from the car before attempting.
Check if the liftgate button inside the vehicle works.
Restart the vehicle and try again.
If the power liftgate is still unresponsive, check the fuse box (refer to the owner’s manual for the exact fuse location).
If the issue persists, the power liftgate motor may need servicing—contact a dealership.

Press the brake pedal firmly before trying to release the parking brake.
Press the parking brake switch down while holding the brake pedal.
If Auto Hold is active, press the Auto Hold button to turn it off.
Restart the vehicle and try again.
If the battery is weak, jump-start the car and then try to release the parking brake.
If the brake is still stuck, the system may need a manual override (refer to the owner's manual for emergency brake release).
If none of these steps work, contact Mercedes-Benz Roadside Assistance or visit a dealership.